#garfield Logs

Apr 16 2015

02:23 katsmeow-afk .
03:44 tsmeow-afk wonders if rue has considered attaching Dave Edmunds song "I Hear You Knocking" to the door
04:21 katsmeow-afk .
04:49 katsmeow-afk http://www.ebay.com/itm/Low-Power-NAS-Network-Storage-Torrent-Server-SD-Image-Noobs-for-Raspberry-Pi2-/300979352488
09:04 rue_house ... have you ever heard of a steam operated vacuum pump?
09:06 rue_house I see lots of venturi based ones, which is silly
12:48 katsmeow-afk the first steam engines were all vacuummnnn machines, notpressure
12:49 katsmeow-afk put hot steam in the cylinder, seal it, the steam cools and contracts, pulling a piston, or a water column, up, or somewhat sideways
12:50 katsmeow-afk yesterday the weather was dry, my spindle was held up in Kansas,, today it's solid rain all day long, my spindle is out for delivery
12:56 katsmeow-afk rue, the older machines i maintained, and naturally modified severely, had venturi type of vac generators, run on air pressure, because pressure was lots easier to store and distribute
12:57 katsmeow-afk they were like 6x2x1 inch, run off 100psi air, no moving parts, aluminum and brass, pulled pretty darned deep vac
12:58 katsmeow-afk bournoulli principles, shaped nozzles
14:35 katsmeow-afk "shaped nozzels" : thin brass tube, held litely to a grinding wheel to taper the wall thickness at one end, or clamped in a lathe and touched with a file held an an angle, or other trivially easy shaping
14:35 katsmeow-afk it was incredible that humans were paying $100's for those things
14:39 katsmeow-afk ok, 100 amphr battery, is 5 amps for 20 hrs, to be paranoid and safe when making a sinewave you limit to peak 5a or rms 3.5a , but 3.5a will stretch power out to 28hrs, so figure 24hrs at 3.5a,,,,
14:40 katsmeow-afk 3.5a @ 12vdc is 42 watts , you can run 4 10w led lites for 3 nites before the battery simply must be recharged
14:40 katsmeow-afk for 16 such batteries in series to make 120vac , 3.5a is 420 watt per hr for 3 nites
14:41 katsmeow-afk 1/2 ton of batteries
14:43 katsmeow-afk considering the duty cycles , replacing one each month on average is prolly normal, $1200/year
14:44 katsmeow-afk based on performance going down after 100 cycles, and pretty likely useless after 300 *deep* discharges
16:05 katsmeow-afk it's as if the storms cannot cross the interstate, they are in a line hung up over it, and the rain over me is like the clouds being blown off the storm
17:13 katsmeow-afk awecrap, the nut for the spindle does not go down on the collets, the taper inside the nut does not reach the taper on the collet, and then the nut reaches only a few threads on the spindle
17:14 tsmeow-afk highly resembles someone who is pissed, disappointed, and resigned to Murphy's Law always being in f
17:16 katsmeow-afk the collet is 1.020 at it's widest diameter,
17:17 katsmeow-afk it's hanging in the nut where it's 1.007
17:17 katsmeow-afk oh............
17:18 katsmeow-afk put collet into nut, BEFORE putting into spidle
17:34 katsmeow-afk needs keyway for some sorta driving device to turn it, and there's a threaded portion inside the top end of it, there's no bearing lands on it anywhere
17:35 katsmeow-afk oddly, the portion i presume must stick down from the bottom bearing, with nothing on it, is 1.250 , but the shaft where the bearings do go is 1.260 inch or 32.004 mm
17:39 katsmeow-afk so, it's pretty, cute, looks quite adequate for milling and drilling in small bites, basically, there's no way i can break this tool
17:51 katsmeow-afk it's 5:30 pm!!!
17:51 katsmeow-afk AARRGG
17:52 katsmeow-afk also means dinner got cold in the nukebox
20:21 rue_house atleast it wasn't burt to a sinder
20:21 rue_house cinder
20:48 tsmeow-afk used some basil in cooking for the first time since the Dog Era began, and the flavor and smell is wonde
21:06 Tom_itx long friggin day.................
21:10 tsmeow-afk has struggled to make a Day Shortener before, to no a
21:14 Tom_itx only plus was arriving home and the MB was here
21:16 tsmeow-afk erases that so the wife and kids won't se
21:18 rue_house my goal is to burry antoher yard light, and work on mounting the new bed to the 3d printer
21:18 Tom_itx nice little 7 x 7" MB
21:18 Tom_itx how will you see the yard light if you bury it?
21:19 rue_house but does it have pci hyperexpress32?
21:19 Tom_itx it has pcie
21:19 Tom_itx which is all i need on that board
21:19 Tom_itx that will become the new mill control
21:20 Tom_itx the current one will replace this aging itx
21:20 Tom_itx so it won't take 20 min to load a webpage
21:20 rue_house with pci hyperexpress32 you can tranfer at 960Gbytes/sec to the 32k cache chip
21:21 rue_house with only 4 seconds latency!
21:22 tsmeow-afk is am
21:22 rue_house I'm amazed too
21:22 Tom_itx most memory is 9
21:23 Tom_itx err..
21:23 Tom_itx http://www.newegg.com/Product/Product.aspx?Item=N82E16813157497&cm_re=asrock_j1900-_-13-157-497-_-Product
21:23 Tom_itx 60 for a mb with chip isn't too bad
21:24 katsmeow-afk tis funny, i am thinking of a C64 to control a mill, and Tom is using the newest thing possible
21:24 katsmeow-afk i already paid for the C64
21:24 Tom_itx i had one of those luggable 64's once
21:24 rue_house I suppose sledgehammera are cheap these days, nobody wants to pay for finishing hammers
21:24 Tom_itx builtin screen etc
21:25 rue_house luggable was a 8088
21:25 Tom_itx don't think so
21:25 Tom_itx this was commodore
21:25 rue_house C64 was a bit bigger than your keyboard
21:25 Tom_itx yeah i had one of those too iirc
21:26 Tom_itx can't remember what it was called
21:26 katsmeow-afk the luggable was like an Osbourne "laptop"
21:26 Tom_itx sx64...
21:26 katsmeow-afk i forgets too
21:26 Tom_itx http://upload.wikimedia.org/wikipedia/commons/7/7b/Commodore_SX-64_front_2.jpg
21:27 katsmeow-afk yeas, like the olde Osbournes
21:27 Tom_itx got the sata adapter too but i have no idea what the external connectors are
21:27 Tom_itx odd configuration but supposedly sata
21:27 Tom_itx plug is different
21:37 katsmeow-afk aren't "standards" wonderful?
21:42 katsmeow-afk Tom, ER25 are cute, and look very durable and practical for home use
21:44 tsmeow-afk is somewhat growling that the bearings will be here tomorrow, because it will be too late to goto Bham to size a housing for
21:45 tsmeow-afk listens to Allison Krouse as this week's The Big Bang Theory downloads (i can't watch it live online, the intertubes are too slow h
21:54 tsmeow-afk suggests Tom can make some of these machine parts, and make maybe $25 - $100 a nite while watching tv while the cnc mill and lathe cut interesting sh
21:55 tsmeow-afk looks at
21:58 katsmeow-afk cnc instruction : do this, step this way .002 each time, till you reach X , then repeat with no step 100 times
22:21 atom1 haha gotta love that
22:22 atom1 pulled old linux hdd from the atom and plugged it into the asrock and booted right up
22:22 atom1 had to reboot once to get the right screen res after swapping monitors though
22:36 katsmeow-afk my arm is peeling, is that good or bad?
23:19 katsmeow-afk so, Tom, what is the preferred method of grabbing hold of the small mill spindle and turning it?
23:20 katsmeow-afk [17:13] <katsmeow-afk> needs keyway for some sorta driving device to turn it, and there's a threaded portion inside the top end of it, there's no bearing lands on it anywhere
23:20 katsmeow-afk [17:14] <katsmeow-afk> oddly, the portion i presume must stick down from the bottom bearing, with nothing on it, is 1.250 , but the shaft where the bearings do go is 1.260 inch or 32.004 mm
23:20 katsmeow-afk [17:19] <katsmeow-afk> so, it's pretty, cute, looks quite adequate for milling and drilling in small bites, basically, there's no way i can break this tool
23:21 katsmeow-afk shaft collars and such things?
23:22 katsmeow-afk yipes, cheapest 32mm clamp collar to pop up on ebay is $17
23:27 katsmeow-afk wait, pressing the bit down into the work is going to exert some force on the spindle, what can i do for bearing seats?
23:38 katsmeow-afk how do you feel about me putting a big ole R20 bearing on the bottom end of the spindle?because for an inch above the nut it's 1.250 , not 30mm